Heat of The Everflame - Penn Cole

Book 3 of The Kindred's Curse Saga 

Diem Bellator struggles amid the growing war between the Descended and the Guardians. Caught between her loyalties to her newfound allies, the man she loves, and the mortals she is sworn to protect, Diem and Luther journey across the realms to uncover the secrets of her heritage. As the Crowns target her, Diem must navigate shifting alliances and risk everything to raise an army to end their reign